Numerical study of the hydraulic tortuosity for fluid flow through elliptical particle packings

Shuang Song; Liangwan Rong; Kejun Dong; Yansong Shen

doi:10.1016/j.powtec.2021.117047

Numerical study of the hydraulic tortuosity for fluid flow through elliptical particle packings

Shuang Song, Liangwan Rong, Kejun Dong, Yansong Shen

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

In this work, the hydraulic tortuosity (T_h) specific for the binary-sized elliptical particle packings is studied using the Lattice Boltzmann method (LBM) and discrete element method (DEM). The model is validated by comparing with experimental and simulation data with an average deviation of 6% (Max 10%). Then the model is used to develop a reliable T_h correlation to describe the fluid streamlines in elliptical particle packings. Firstly, a generalized T_h correlation format is proposed, containing porosity (ε) and two empirical coefficients (a, b). Then the effects of ε and size ratio (r) on the T_h are studied, and by curve-fitting the simulation results, the empirical coefficients (a, b) are formulated as a function of r. Meanwhile, the generalized T_h correlation format is applicable for predicting the T_h in porous media with different microstructures. The T_h correlations provide a theoretical basis for macroscopic modelling of fluid flow through porous media of elliptical particles.

Original language	English
Article number	117047
Number of pages	11
Journal	Powder Technology
Volume	398
DOIs	https://doi.org/10.1016/j.powtec.2021.117047
Publication status	Published - Jan 2022

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© 2021 Elsevier B.V.

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title = "Numerical study of the hydraulic tortuosity for fluid flow through elliptical particle packings",

abstract = "In this work, the hydraulic tortuosity (Th) specific for the binary-sized elliptical particle packings is studied using the Lattice Boltzmann method (LBM) and discrete element method (DEM). The model is validated by comparing with experimental and simulation data with an average deviation of 6% (Max 10%). Then the model is used to develop a reliable Th correlation to describe the fluid streamlines in elliptical particle packings. Firstly, a generalized Th correlation format is proposed, containing porosity (ε) and two empirical coefficients (a, b). Then the effects of ε and size ratio (r) on the Th are studied, and by curve-fitting the simulation results, the empirical coefficients (a, b) are formulated as a function of r. Meanwhile, the generalized Th correlation format is applicable for predicting the Th in porous media with different microstructures. The Th correlations provide a theoretical basis for macroscopic modelling of fluid flow through porous media of elliptical particles.",

author = "Shuang Song and Liangwan Rong and Kejun Dong and Yansong Shen",

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year = "2022",

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doi = "10.1016/j.powtec.2021.117047",

language = "English",

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TY - JOUR

T1 - Numerical study of the hydraulic tortuosity for fluid flow through elliptical particle packings

AU - Song, Shuang

AU - Rong, Liangwan

AU - Dong, Kejun

AU - Shen, Yansong

PY - 2022/1

Y1 - 2022/1

N2 - In this work, the hydraulic tortuosity (Th) specific for the binary-sized elliptical particle packings is studied using the Lattice Boltzmann method (LBM) and discrete element method (DEM). The model is validated by comparing with experimental and simulation data with an average deviation of 6% (Max 10%). Then the model is used to develop a reliable Th correlation to describe the fluid streamlines in elliptical particle packings. Firstly, a generalized Th correlation format is proposed, containing porosity (ε) and two empirical coefficients (a, b). Then the effects of ε and size ratio (r) on the Th are studied, and by curve-fitting the simulation results, the empirical coefficients (a, b) are formulated as a function of r. Meanwhile, the generalized Th correlation format is applicable for predicting the Th in porous media with different microstructures. The Th correlations provide a theoretical basis for macroscopic modelling of fluid flow through porous media of elliptical particles.

AB - In this work, the hydraulic tortuosity (Th) specific for the binary-sized elliptical particle packings is studied using the Lattice Boltzmann method (LBM) and discrete element method (DEM). The model is validated by comparing with experimental and simulation data with an average deviation of 6% (Max 10%). Then the model is used to develop a reliable Th correlation to describe the fluid streamlines in elliptical particle packings. Firstly, a generalized Th correlation format is proposed, containing porosity (ε) and two empirical coefficients (a, b). Then the effects of ε and size ratio (r) on the Th are studied, and by curve-fitting the simulation results, the empirical coefficients (a, b) are formulated as a function of r. Meanwhile, the generalized Th correlation format is applicable for predicting the Th in porous media with different microstructures. The Th correlations provide a theoretical basis for macroscopic modelling of fluid flow through porous media of elliptical particles.

UR - https://hdl.handle.net/1959.7/uws:71190

U2 - 10.1016/j.powtec.2021.117047

DO - 10.1016/j.powtec.2021.117047

M3 - Article

SN - 0032-5910

VL - 398

JO - Powder Technology

JF - Powder Technology

M1 - 117047

ER -

Numerical study of the hydraulic tortuosity for fluid flow through elliptical particle packings

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